laforge has posted comments on this change. ( https://gerrit.osmocom.org/c/osmo-hnbgw/+/34974?usp=email )

Change subject: allow (second) CS RAB Assignment Request without RTP info ......................................................................

Patch Set 4:

(1 comment)

Commit Message:

https://gerrit.osmocom.org/c/osmo-hnbgw/+/34974/comment/d186709b_57f2c6f5 PS4, Line 19: Do not (yet?) supp

the "yet" is about modifying an active RAB -- IIUC for handover that wouldn't be needed. […]

for intra-RNC: Yes I would assume that is the normal case, but we're making assumptions here (that the RNC will hide the internal RAN topology / IP addresses and present a fixed RTP endpoint towards the CN). Likely but not guaranteed.

As for inter-RNC: Likewise, there could in theory be some different support in terms of codecs/rates. Again, likely that it's not required in a usual case, but I'd say there are potential cases and the specs allow for it, certainly.